- All sections
- H - Electricity
- H02P - Control or regulation of electric motors, electric generators or dynamo-electric converters; controlling transformers, reactors or choke coils
- H02P 9/18 - Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field due to variation of ohmic resistance in field circuit, using resistances switched in or out of circuit step by step the switching being caused by a servomotor, measuring instrument, or relay
Patent holdings for IPC class H02P 9/18
Total number of patents in this class: 6
10-year publication summary
0
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0
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1
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1
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0
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2
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0
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0
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0
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0
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2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
The Boeing Company | 19843 |
1 |
TDK Corporation | 6306 |
1 |
Konica Minolta, Inc. | 8349 |
1 |
Alstom Technology Ltd | 1196 |
1 |
FANUC Corporation | 5803 |
1 |
Safran Electrical & Power | 507 |
1 |
Other owners | 0 |